A jagged array is an array of arrays, and therefore its elements are reference types and are initialized to null.
Let us see how to work with Jagged array −
Declare a jagged array −
int [][] marks;
Now, let us initialize it, wherein marks is an arrays of 5 integers −
int[][] marks = new int[][]{new int[]{ 40,57 },new int[]{ 34,55 }, new int[]{ 23,44 },new int[]{ 56, 78 }, new int[]{ 66, 79 } };
Let us now see the complete example of jagged arrays in C# and learn how to implement it −
using System; namespace MyApplication { class MyDemoClass { static void Main(string[] args) { int i, j; int[][] marks = new int[][] { new int[] { 90, 95 }, new int[] { 89, 94 }, new int[] { 78, 87 }, new int[] { 76, 68 }, new int[] { 98, 91 } }; for (i = 0; i < 5; i++) { for (j = 0; j < 2; j++) { Console.WriteLine("marks[{0}][{1}] = {2}", i, j, marks[i][j]); } } Console.ReadKey(); } } }
marks[0][0] = 90 marks[0][1] = 95 marks[1][0] = 89 marks[1][1] = 94 marks[2][0] = 78 marks[2][1] = 87 marks[3][0] = 76 marks[3][1] = 68 marks[4][0] = 98 marks[4][1] = 91